ARP spoofing, no connection on target device

since a few days i’m interested in sniffing/spoofing. I’m running Kali as a Host and MITMf (0.9.8).

My command ist:

python --arp --spoof --gateway X.X.X.1 --target X.X.X.2 -i wlan0 

Everything runs with no error. The Target Device has internet connection and can connect to every HTTPS website like google, youtube and so on. But if the target device wants to connect to a HTTP site, it doesn’t load, like there is no connection.

IP forwarding is enabled.

Does someone know, where the issue could be?